FROGS OF COLOMBIA — COCHRAN AND GOIN 247 



It is a more projecting snout. Secondly, males of foliamorta seem to 

 have a darker throat than do males of boulengeri. In foliamorta, the 

 dusky spots are so small and so thickly scattered that you get the 

 impression of a more or less gray or dark throat, brownish perhaps, 

 whereas in boulengeri you get the impression of a white throat with dark 

 specks scattered about on it. From a ventral view the lower surface 

 of the rostrum tends to be dark in foliamorta whereas generally it 

 is light with perhaps just some dark flecks on it in boulengeri. Also, 

 foliamorta tends to have the region of groin where the anterior face 

 of the thigh meets the side clear, whereas in boulengeri there tends 

 to be in this region a dark spot similar to those along the face of the 

 thigh. In other words, the corner of the groin in foliamorta is more 

 often clear; the corner of the groin in boulengeri is more often dark. 

 In general, the leg of boulengeri seems to be shorter, the heel reaching 

 between the eye and nostril; whereas in foliamorta it tends to be 

 longer, the heel reaching to the nostril or to the tip of the snout or 

 perhaps even somewhat beyond that. The dark interocular triangle 

 in foliamorta seems to be bordered by a narrow but quite distinct 

 glandular ridge on all three sides. This ridge is not actually in contact 

 with the dark triangle but separated from it by a millimeter or two. 

 Sometimes similar ridges are present in boulengeri but when they are 

 present they are never so conspicuous. Dorsally, boulengeri seems to 

 have a rougher, more tuberculate skin, whereas foliamorta seems to 

 have the skin of the dorsum smoother and less tuberculate. Further- 

 more, on the postocular glandular fold of foliamorta, the dark supra- 

 tympanic stripe that follows along it seems to stand out rather strik- 

 ingly against a generally paler background, as do the three supra- 

 scapular spots posterior to it. These same stripes and spots can usually 

 be made out in boulengeri but because of the dark roughened skin 

 they are not nearly so prominent. Sometimes in boulengeri these 

 stripes and spots may not even be discernible. An additional char- 

 acter can sometimes be noted along the lower jaw; in boulengeri 

 this is usually margined with tubercles ranging from inconspicuous 

 to conspicuous, whereas in foliamorta the lower margin of the lower 

 jaw seems to be rather smooth all the way from front to back." 



At that time it was decided (by Goin and Fouquette) that the 

 two specimens listed here from El Heal, Antioquia, Colombia, were 

 the only known Colombian representatives of foliamorta. If these 

 two nominal forms are really distinct, it seems unlikely that their 

 present distribution can be worked out in any detail except by studies 

 made on the species in life. 



Specimens Examined 

 COLOMBIA 



Antioquia: El Real, USNM 127865-6. 



